Delta Air Lines

Delta is the largest U.S. carrier by revenue and it has Atlanta as the busiest hub on Earth -- 200+ daily departures just out of ATL, plus massive presences in Minneapolis, Seattle, and Los Angeles. The airline carried 204 million passengers in 2024, which tells you Delta has scaled profitably without the constant crises that plague United or Southwest. The SkyMiles program is one of the best loyalty currencies in the U.S. because you can actually use miles on Delta without gaming the system, and the airline releases seats consistently.

The fleet modernization is real. Delta is retiring its entire 717 fleet (by late 2025) and phasing out older 757s on premium routes, replacing both with A220-300s and A321neo aircraft. The A350-900 and A350-1000 will eventually form the backbone of long-haul, while the 787-9 and A330-900neo get the sweet spot of trans-Pacific and transatlantic wide-body routes. The Delta One product (business class) on the A350 is genuinely competitive with anything overseas carriers offer, and the domestic Comfort+ tier gives you 34 inches without the business class price tag. This isn't the most premium airline globally, but it's the most consistently reliable premium experience in the U.S. market.

The A350-900 handles transatlantic and some premium Pacific routes (Tokyo, Seoul) with Delta One Suites in a 1-2-1 configuration. These suites have 6'8" of length, USB-C and power outlets, and direct aisle access for every seat. The cabin seats 32 business passengers total (8 forward, 12 mid, 12 aft). Premium Economy adds another 24 seats with 38-inch pitch. The A330-900neo (another new wide-body) has Delta One in a 1-2-1 layout with 28 suites, and it's becoming the workhorse for Pacific and Caribbean routes. Both aircraft have the Delta Studio entertainment system -- 10,000+ hours of on-demand content with a bigger, higher-resolution seatback screen than the older 787s.

The 787-9 (75 aircraft in the fleet) is still the international daily driver, running routes to Europe, Caribbean, and short-haul Asia. Delta One on the 787 is not a suite -- it's a lie-flat in a 1-2-1 layout with a Thompson Aero Vantage seat, and they're great seats, but they don't have direct aisle access for middle seats. The 767-400ER handles secondary international routes (now with lie-flat business class after recent retrofits), and domestically, the A220-300 is finally replacing the aging 717 fleet. The A220 has bigger windows, lower cabin pressure (equivalent to 6,000 feet), and far better noise insulation. On domestic routes, look for the A220 -- it's noticeably more comfortable than the 737s that dominate competitors' fleets.

Delta One Suites on the A350 genuinely feel like a modern upgrade to the older lie-flat experience. The suite door isn't quite the sliding closure of Qatar or Emirates, but it's substantial privacy via a hinged door that closes most of the way. The seat converts to a fully lie-flat bed that's 6'8" long and 28 inches wide. The bedding is Frette (same as Singapore Airlines), with a proper duvet and memory foam mattress. Direct aisle access means nobody climbs over you to get to the bathroom. Amenity kits are TUMI-branded, and you get Tumi luggage as a frequent flyer bonus. The dining is better than the rest of the Delta cabin -- it's actually plated service with choices, not the simplified stuff economy gets.

Comfort+ on the A350 is 38-inch pitch and a lie-flat when you recline your seat fully. It's a smart middle ground if you're willing to spend but don't need the full suite experience. The regular economy on the A350 is 31 inches, and the seat width is decent at 17.3 inches. The Delta Studio seatback screens are 12.1 inches on business class and 11.6 inches on economy -- visible improvements over the older 10.6-inch screens on the 787s. The cabin pressure on the A350 is equivalent to 6,000 feet (vs. 8,000 on most aircraft), which reduces jet lag noticeably. WiFi is included in all cabins, unlike some competitors who gate it behind paid passes.

On Delta One Suites on the A350, the forward cabin (8 seats in rows 1-2) boards first and deplanes first, but the rear cabin (rows 8-9) is quieter and further from the galley bustle. If you value privacy and don't mind boarding last, aft is worth requesting. Middle suites in the mid-cabin (rows 4-6) get a balance of position and quietness. Avoid the very back of the aircraft in regular economy (rows 30+) -- you'll get noise from the engines and a longer walk to the galleys and lavatories.

On Comfort+ sections, rows in the forward part of the cabin (typically rows 21-24 on the A350) are worth targeting because you're closer to the galley where you board, and you'll deplane faster. Window seats on the A350 are exceptional for views because the windows are genuinely huge -- even bigger than the 787. On the A220, exit rows typically offer 35 inches of pitch, which is worth the extra upgrade fee on flights over 2 hours. The A220 cabin is also noticeably quieter than any Boeing narrow-body, which matters on the longer domestic routes like ATL-LAX or ATL-SEA.